Polymer modified repair mortar and construction process thereof

A technology for repairing mortar and polymer, which is applied in the field of construction mortar, can solve problems that hinder popularization and use, and achieve the effects of compact filling, reduced cracking, and enhanced tensile strength

Pending Publication Date: 2019-12-10
广州迪瑞夫建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the styrene-butadiene emulsions used are imported, such as DL470 styrene-butadiene emulsion produced by Dow in the United States and 623 styrene-butadiene emulsion produced by BASF in Germany, which will hinder their promotion and use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] A polymer modified repair mortar, which is characterized in that it comprises water and the following raw material components (parts by weight): 250 parts of gelling material, 650 parts of white fine quartz sand, 9 parts of dispersible latex powder, 4 parts of water retaining agent Parts, 6 parts of water reducing agent, 3 parts of fiber, 2 parts of black toner, 6 parts of lithium sulfate, 22 parts of expansion agent, 16 parts of silica fume, 22 parts of porcelain powder, 1 part of acrylic resin rubber powder, 0.5 part of aluminum powder.

[0018] Further, the cementing material is sulfoaluminate cement.

[0019] Further, the quartz sand is graded sand, and its mesh number ranges from 30 to 120 meshes (particle size is 0.125mm-0.595mm). Quartz sand comes from the tailings of a tin ore dressing plant whose wall rock is a quartz vein. Porcelain powder is ceramic powder, which can provide good strength for mortar. Its mesh range is 100-200 mesh (particle size is 0.074mm-0.147m...

example 2

[0028] A polymer modified repair mortar, which is characterized in that it comprises water and the following raw material components (parts by weight): 620 parts of gelling material, 300 parts of white fine quartz sand, 10 parts of dispersible latex powder, 3 parts of water retaining agent Parts, 5 parts of water reducing agent, 2 parts of fiber, 1.5 parts of black toner, 5 parts of lithium sulfate, 20 parts of expansion agent, 15 parts of silica fume, 20 parts of porcelain powder, 0.5 parts of acrylic resin rubber powder, 0.25 parts of aluminum powder.

[0029] Further, the cementing material is sulfoaluminate cement.

[0030] Further, the quartz sand is graded sand, and its mesh number ranges from 30 to 120 meshes (particle size is 0.125mm-0.595mm). Quartz sand comes from the tailings of a tin ore dressing plant whose wall rock is a quartz vein. Porcelain powder is ceramic powder, which can provide good strength for mortar. Its mesh range is 100-200 mesh (particle size is 0.074m...

example 3

[0039] A polymer modified repair mortar, which is characterized in that it comprises water and the following raw material components (parts by weight): 240 parts of gelling material, 700 parts of white fine quartz sand, 9 parts of dispersible latex powder, 2 parts of water retaining agent Parts, 4 parts of water reducing agent, 1 part of fiber, 1 part of black toner, 4 parts of lithium sulfate, 18 parts of expansion agent, 14 parts of silica fume, 18 parts of porcelain powder, 1 part of acrylic resin rubber powder, 0.5 part of aluminum powder.

[0040] Further, the cementing material is sulfoaluminate cement.

[0041] Further, the quartz sand is graded sand, and its mesh number ranges from 30 to 120 meshes (particle size is 0.125mm-0.595mm). Quartz sand comes from the tailings of a tin ore dressing plant whose wall rock is a quartz vein. Porcelain powder is ceramic powder, which can provide good strength for mortar. Its mesh range is 100-200 mesh (particle size is 0.074mm-0.147mm)...

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Abstract

The invention relates to building mortar, in particular to polymer modified repair mortar and a construction process thereof. The polymer modified repair mortar comprises the following raw material components in parts by weight: 200-300 parts of special cement, 610-710 parts of quartz sand, 18-22 parts of porcelain powder, 9-11 parts of dispersible latex powder, 2-4 parts of a water retaining agent, 4-6 parts of a water reducing agent, 0-2 parts of short fibers, 0-2 parts of inorganic black toner, 4-6 parts of lithium sulfate, 18-22 parts of an expanding agent, 14-16 parts of silica fume, 0-1part of acrylic resin rubber powder and 0-0.5 part of aluminum powder. The novel repair mortar has the advantages of high bonding strength, good stability, no cracking and the like. With addition of the expanding agent, the porcelain powder, the aluminum powder and the like, the repair mortar has the excellent performances of micro-expansion, high strength, good wear resistance and the like, and particularly shows good repairing effect when repairing cracks and pits.

Description

Technical field [0001] The invention relates to a mortar for construction, in particular to a polymer modified repair mortar and a construction method. Background technique [0002] During the use of concrete floors, damages such as sand, cracks, and potholes often occur due to collisions, heavy pressures, scratches and other conditions. These damages not only affect the appearance of the ground, but also affect the use, and sometimes even cause safety hazards. It must be repaired. At present, the repair materials mainly include ordinary cement repair materials and high molecular polymer repair materials. However, the early strength development of ordinary cement mortar is slow, the bonding strength is low, and it is easy to shrink, and the repair effect is not good. Among the polymer repair materials, the more common ones are mentioned in the following two patents CN 1415572A "a polymer modified rapid repair material" and CN101481236A "a rapid repair material for cement concr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/72
CPCC04B28/06C04B2111/72C04B14/06C04B18/023C04B2103/0057C04B2103/465C04B2103/302C04B16/0633C04B2103/54C04B22/147C04B22/148C04B22/064C04B18/146C04B24/2641C04B22/04
Inventor 唐力清李玉平钟杰来
Owner 广州迪瑞夫建筑材料有限公司
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